CN109133031A - A kind of preparation method of porous carbon microsphere electrode material for super capacitor - Google Patents
A kind of preparation method of porous carbon microsphere electrode material for super capacitor Download PDFInfo
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- CN109133031A CN109133031A CN201811201119.XA CN201811201119A CN109133031A CN 109133031 A CN109133031 A CN 109133031A CN 201811201119 A CN201811201119 A CN 201811201119A CN 109133031 A CN109133031 A CN 109133031A
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- porous carbon
- carbon microsphere
- super capacitor
- preparation
- electrode material
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 35
- 239000004005 microsphere Substances 0.000 title claims abstract description 22
- 239000003990 capacitor Substances 0.000 title claims description 10
- 238000002360 preparation method Methods 0.000 title claims description 9
- 239000007772 electrode material Substances 0.000 title claims description 8
- 238000001035 drying Methods 0.000 claims abstract description 10
- 229940103272 aluminum potassium sulfate Drugs 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims abstract description 7
- GRLPQNLYRHEGIJ-UHFFFAOYSA-J potassium aluminium sulfate Chemical compound [Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRLPQNLYRHEGIJ-UHFFFAOYSA-J 0.000 claims abstract description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229920002472 Starch Polymers 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 239000012153 distilled water Substances 0.000 claims abstract description 5
- 235000019698 starch Nutrition 0.000 claims abstract description 5
- 239000008107 starch Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000005554 pickling Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 5
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 4
- 238000002791 soaking Methods 0.000 claims description 4
- 238000003837 high-temperature calcination Methods 0.000 claims 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 4
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 2
- 238000010189 synthetic method Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000010792 warming Methods 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 229920002261 Corn starch Polymers 0.000 description 1
- HJYUZIDYQOZTBZ-UHFFFAOYSA-J [K+].S(=O)(=O)([O-])[O-].[Al+3].NN.S(=O)(=O)([O-])[O-] Chemical compound [K+].S(=O)(=O)([O-])[O-].[Al+3].NN.S(=O)(=O)([O-])[O-] HJYUZIDYQOZTBZ-UHFFFAOYSA-J 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000008120 corn starch Substances 0.000 description 1
- 229940099112 cornstarch Drugs 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/05—Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/24—Electrodes characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosity; characterised by the structural features of powders or particles used therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
- H01G11/42—Powders or particles, e.g. composition thereof
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/30—Particle morphology extending in three dimensions
- C01P2004/32—Spheres
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The present invention is made from starch; after aluminum potassium sulfate solution pre-processes; it is carbonized in nitrogen; it is cooling; neutrality is washed with distilled water to after dilute hydrochloric acid pickling; porous carbon microsphere is obtained after filtration drying, the synthetic method is simple and is easy to large-scale production, and synthesized porous carbon microsphere has good performance of the supercapacitor.
Description
Technical field
The present invention relates to electrode material for super capacitor preparation fields, and in particular to a kind of preparation side of porous carbon microsphere
Method.
Background technique
Supercapacitor is due to its high power density, the unique properties such as fast charging and discharging rate and excellent cyclical stability
And more and more concerns are caused as novel energy storage device in scientific research.In general, the electrification of supercapacitor
It learns performance and is substantially dependent on electrode material, porous carbon is most common electrode material for super capacitor, because its surface area is big, electricity
Sub- conductivity is high, and aperture is adjustable, and chemical stability is splendid, advantage of lower cost and be concerned.Recently, researcher is dedicated to
Various forms of novel porous carbon are developed, high-performance super capacitor, such as graded porous carbon, template carbon, carbon ball, carbide are used for
Derived carbon, carbon nanotube and graphene.
Recently, porous carbon ball shows the prospect for advanced energy-storage system.The geometry of their rules, adjustable diameter
Effective method is provided with aperture to customize excellent chemical property.In addition, closely packed carbon ball provides hole between ball
Degree buffers reservoir as ion, is conducive to fast ionic diffusion and transports internal carbon surface, to improve the electrochemistry of material
Performance.In addition, mixing hetero atom such as oxygen, nitrogen etc. in carbon structure helps to improve the electricity and chemical property of carbon surface.
The preparation method of carbon ball mainly includes activation method, template, hydro-thermal method, chemical vapour deposition technique, carbonization gel method
Deng the most commonly used is template, the present invention is using cheap cornstarch as carbon source.A kind of no template in-situ activation is developed to be formed
Porous carbon microsphere.
Summary of the invention
The present invention is with template-free method one-step synthesis porous carbon microsphere.
Technical scheme is as follows:
The 12 hydrazine aluminum sulfate potassium for weighing certain mass are placed in 100 milliliters of ultrapure waters, and stirring clarifies to be formed to solution
Aluminum potassium sulfate solution weighs 3 grams of starch and is placed in aluminum potassium sulfate solution, the filtration drying after soaking at room temperature 24 hours, dry
Sample afterwards, which is put into tube furnace, is warming up to 800~1000 DEG C under nitrogen atmosphere, keep the temperature 4 hours, cooling, 2mol/L chlorohydric acid pickling
After be washed with distilled water to neutrality, obtain porous carbon microsphere after filtration drying.
Porous carbon ball material synthesized by the present invention is made into electrode of super capacitor, tests its performance of the supercapacitor.
The concentration of heretofore described aluminum aluminum sulfate are as follows: 0.126~0.190mol/L.
The preparation method of heretofore described porous carbon microsphere is simply easy to large-scale production.
Detailed description of the invention
Fig. 1 is scanning electron microscope (SEM) picture of the porous carbon microsphere prepared in embodiment 1；
Fig. 2 is scanning electron microscope (SEM) picture of the porous carbon microsphere prepared in embodiment 2；
Fig. 3 is that adsorption curve is desorbed in the porous carbon microsphere nitrogen prepared in embodiment 1；
Fig. 4 is that adsorption curve is desorbed in the porous carbon microsphere nitrogen prepared in embodiment 2；
Fig. 5 is the charging and discharging curve figure of the porous carbon microsphere for preparing at 1~20A/g of current density in embodiment 1.
Fig. 6 is the charging and discharging curve figure of the porous carbon microsphere for preparing at 1~20A/g of current density in embodiment 2.
Specific embodiment
Embodiment 1
It weighs 3 grams of starch to be placed in the aluminum potassium sulfate solution of 100 milliliters of 0.126mol/L, soaking at room temperature filters after 24 hours
It is dry, the sample after drying is put into tube furnace and is warming up to 800 DEG C, constant temperature 4h under nitrogen atmosphere, cooling, 2mol/L hydrochloric acid acid
It is washed with distilled water to neutrality after washing, obtains porous carbon microsphere after filtration drying.Attached drawing 1 shows prepared carbon material in ball
Shape, Fig. 3 show that the carbosphere has pore structure abundant, the specific surface area of carbosphere are as follows: 979.08m2g-1；It should shown in Fig. 5
The maximum specific capacitance of material is 174F/g.
Embodiment 2
It weighs 3 grams of starch to be placed in the aluminum potassium sulfate solution of 100 milliliters of 0.190mol/L, soaking at room temperature filters after 24 hours
It is dry, the sample after drying is put into tube furnace and is warming up to 800 DEG C under nitrogen atmosphere, constant temperature 4 hours, cooling, 2mol/L salt
It is washed with distilled water to neutrality after pickling, obtains porous carbon microsphere after filtration drying.Attached drawing 1 shows that prepared carbon material is in
Spherical shape, Fig. 4 show that the carbosphere has pore structure abundant, the specific surface area of carbosphere are as follows: 1052.70m2g-1；Shown in Fig. 6
The maximum specific capacitance of the material is 196F/g.
Claims (4)
1. a kind of preparation method of porous carbon microsphere electrode material for super capacitor, which is characterized in that weigh 3 grams of starch and be placed in
In 100 milliliters of certain density aluminum potassium sulfate solutions, the sample after drying is put into pipe by filtration drying after soaking at room temperature 24 hours
High-temperature calcination under nitrogen atmosphere in formula furnace, it is constant temperature 4 hours, cooling, it is washed with distilled water to after 2mol/L hydrochloric acid solution pickling
Property obtains porous carbon microsphere after filtration drying.
2. a kind of preparation method of porous carbon microsphere electrode material for super capacitor, feature according to claims 1 exist
In the concentration range of the aluminum potassium sulfate solution are as follows: 0.126~0.190mol/L.
3. a kind of preparation method of porous carbon microsphere electrode material for super capacitor, feature according to claims 1 exist
In the high-temperature calcination temperature be 800~1000 DEG C.
4. porous carbon microsphere material synthesized by claims 1 is made into electrode of super capacitor, its supercapacitor is tested
Performance, maximum specific capacity reach 196F/g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811201119.XA CN109133031A (en) | 2018-10-15 | 2018-10-15 | A kind of preparation method of porous carbon microsphere electrode material for super capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811201119.XA CN109133031A (en) | 2018-10-15 | 2018-10-15 | A kind of preparation method of porous carbon microsphere electrode material for super capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109133031A true CN109133031A (en) | 2019-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811201119.XA Pending CN109133031A (en) | 2018-10-15 | 2018-10-15 | A kind of preparation method of porous carbon microsphere electrode material for super capacitor |
Country Status (1)
| Country | Link |
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| CN (1) | CN109133031A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110330014A (en) * | 2019-07-16 | 2019-10-15 | 兰州理工大学 | The preparation method of starch porous carbon microsphere for electrode material for super capacitor |
| CN112194123A (en) * | 2020-10-20 | 2021-01-08 | 福州大学 | Low-cost porous carbon microsphere and preparation method thereof |
| CN116041989A (en) * | 2023-01-10 | 2023-05-02 | 聚能新材料科技(荆门)有限公司 | Biomass carbon sphere, preparation method thereof, antistatic composite material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104045074A (en) * | 2014-06-18 | 2014-09-17 | 广西师范大学 | Starch-based hollow porous carbon microsphere and preparation method thereof |
| CN104445149A (en) * | 2014-11-25 | 2015-03-25 | 天津工业大学 | Method for preparing hollow carbon microspheres with high oxygen content |
-
2018
- 2018-10-15 CN CN201811201119.XA patent/CN109133031A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104045074A (en) * | 2014-06-18 | 2014-09-17 | 广西师范大学 | Starch-based hollow porous carbon microsphere and preparation method thereof |
| CN104445149A (en) * | 2014-11-25 | 2015-03-25 | 天津工业大学 | Method for preparing hollow carbon microspheres with high oxygen content |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110330014A (en) * | 2019-07-16 | 2019-10-15 | 兰州理工大学 | The preparation method of starch porous carbon microsphere for electrode material for super capacitor |
| CN110330014B (en) * | 2019-07-16 | 2022-07-08 | 兰州理工大学 | Preparation method of starch porous carbon microspheres for supercapacitor electrode material |
| CN112194123A (en) * | 2020-10-20 | 2021-01-08 | 福州大学 | Low-cost porous carbon microsphere and preparation method thereof |
| CN116041989A (en) * | 2023-01-10 | 2023-05-02 | 聚能新材料科技(荆门)有限公司 | Biomass carbon sphere, preparation method thereof, antistatic composite material and preparation method thereof |
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Application publication date: 20190104 |